Home / 185,211.64-255,593.28-100,328.72

Finding the Fourth Proportional to 185,211.64, 255,593.28 and 100,328.72

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Solution

The fourth proportional to 185,211.64, 255,593.28 and 100,328.72 is: 138,454.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,211.64 : 255,593.28 = 100,328.72 : x
  2. Step 2: Convert to fraction form
    185,211.64/255,593.28 = 100,328.72/x
  3. Step 3: Cross multiply
    185,211.64x = 255,593.28 × 100,328.72
  4. Step 4: Simplify right side
    185,211.64x = 25,643,346,623.00
  5. Step 5: Solve for x
    x = 25,643,346,623.00/185,211.64
  6. Step 6: Final answer
    x = 138,454.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.